grothoff.org

.org crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 248 ms crawled 2026-06-04

CH · 80.253.88.126 · AS13030 Init7 (Switzerland) Ltd.

Reputation 100/100

Classifying

HTML metadata

Title
Welcome to grothoff.org

Technology

Server
nginx

DNS records live

NS
  • x.ns.joker.com
  • y.ns.joker.com
  • z.ns.joker.com
MX
  • 50 frontier.grothoff.org

Email authentication strong

SPF
v=spf1 mx a:grothoff.org -all
strict (-all)
DMARC
v=DMARC1; p=reject; aspf=r
policy: reject (enforced)
DKIM
  • default: v=DKIM1; h=sha256; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq9usBSwb50pypGK94mHvFxhpssZ0IjFB8bRMiYeKkE5rripQUikDfTCQBi4e9sHdheew…
selectors probed

Certificate (current)

E8
from 2026-04-23 to 2026-07-22
Expires in 42 days

HTTP security headers

Header hygiene 90/100 Checked live page: https://grothoff.org/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • CSP allows unsafe inline scripts/styles
  • missing Permissions Policy
Header values
referrer-policy
no-referrer
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
default-src 'self'; script-src 'self' 'unsafe-inline'
strict-transport-security
max-age=63072000; includeSubDomains; preload

Linked from (1)

Use this data via API

Everything on this page for grothoff.org is available as JSON from the indexo.dev REST & MCP API.

curl "https://indexo.dev/api/v1/domains/grothoff.org" \
  -H "X-API-Key: idx_..."

Read the docs & get a free key →